[lfs-support] ALFS: glibc-2.26, pass-1 fails

Pol Vangheluwe pol.vangheluwe at icloud.com
Wed Nov 8 13:17:55 PST 2017

> Op 5 nov. 2017, om 17:22 heeft Pol Vangheluwe <pol.vangheluwe at icloud.com> het volgende geschreven:
>> Op 3 nov. 2017, om 00:15 heeft DJ Lucas <blfs-dev at lucasit.com <mailto:blfs-dev at lucasit.com>> het volgende geschreven:
>> (…)
>> I don't build PPC, but that link should be /lib/ld-lsb-ppc32.so.3 for PPC32 or /lib64/ld-lsb-ppc64.so.3 for PPC64.
>> See:
>> http://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-PPC32/LSB-Core-PPC32/requirements.html#RLIBRARIES <http://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-PPC32/LSB-Core-PPC32/requirements.html#RLIBRARIES>
>> and
>> http://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-PPC64/LSB-Core-PPC64/requirements.html#RLIBRARIES
>> —DJ
> I changed the link as suggested by DJ but it didn’t solve the problem.  To be sure that no leftover form the previous build is still contaminating the system,
> I even restarted from zero.
> It is maybe good to know that, already during the build of glibc, the system is spitting out tons of messages “ld.so.1: unhandled signal 11 at …”,
> but without stopping the command script.  The script only stops when executing zic.
> coredumpctl reports hundreds of lines like:
> zo 2017-11-05 12:40:44 CET    21343 -775979576 -775979576  11 * /mnt/build_dir/sources/glibc-2.26/build/elf/ld.so
Inspecting a coredump for ld.so delivers this result:

lfs_ppc125 [ /var/lib/systemd/coredump ]$ sudo gdb /mnt/build_dir/sources/glibc-2.26/build/elf/ld.so "core.ld\x2eso\x2e1.-857252408.6affbfe0e76e4d0095de50f2a05540cb.3453.1509881249000000"
[sudo] password for lfs_ppc125
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Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/elf/ld.so...done.

warning: core file may not match specified executable file.
[New LWP 3454]
[New LWP 3453]
[New LWP 3458]
[New LWP 3455]
[New LWP 3456]
[New LWP 3457]
[New LWP 3459]

warning: Could not load shared library symbols for 7 libraries, e.g. linux-vdso32.so.1.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?
Core was generated by `/sources/glibc-2.26/build/elf/ld.so.1 --library-path /sources/glibc-2.26/build:'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0fe2ea60 in ?? ()
(gdb) set sysroot /mnt/build_dir
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/dlfcn/libdl.so.2...done.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/dlfcn/libdl.so.2
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/resolv/libresolv.so.2...done.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/resolv/libresolv.so.2
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/nptl/libpthread.so.0...done.
warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/nptl/libpthread.so.0
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/libc.so.6...done.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/libc.so.6
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/elf/ld.so.1...done.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/elf/ld.so.1
Reading symbols from /mnt/build_dir/sources/glibc-2.26/build/resolv/libnss_dns.so.2...done.
Loaded symbols for /mnt/build_dir/sources/glibc-2.26/build/resolv/libnss_dns.so.2
(gdb) bt
#0  __GI___libc_realloc (oldmem=0xa642db30, bytes=8) at malloc.c:3145
#1  0x0fe0440c in _IO_vfscanf_internal (s=s at entry=0xb7f24420, format=format at entry=0x10006230 <error: Cannot access memory at address 0x10006230>, argptr=argptr at entry=0xb7f24550, errp=errp at entry=0x0)
    at vfscanf.c:1193
#2  0x0fe16134 in _IO_vsscanf (string=0xb7f246fe "code1.example", format=0x10006230 <error: Cannot access memory at address 0x10006230>, args=args at entry=0xb7f24550) at iovsscanf.c:41
#3  0x0fe0ea20 in __sscanf (s=<optimized out>, format=<optimized out>) at sscanf.c:32
#4  0x1000163c in ?? ()
#5  0x10002c44 in ?? ()
#6  0x10002dc8 in ?? ()
#7  0x10002354 in ?? ()
#8  0x0ff4febc in start_thread (arg=0xb7f254b0) at pthread_create.c:465
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) q

Does this ring a bell to anybody?


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